In peas, the dominant seed shape is round and the recessive is wrinkled(w). The dominant trait for pod color is green and recessive is yellow (y). A plant with round seeds and green pods that i heterozygous only for the color trait is crossed with a plant that has wrinkled seeds and yellow pods, and the resulting F1 progeny are selfed(self fertilized).

Write out the P1 genotpes and the F1 and F2 genotypic and phenotypic ratios.

What proportion of the plants with green pods and round seeds from the F2 generation would you expect to be true breeding(i.e. produce only plants with green pods and round seeds)?